Battery Pack

This application claims the benefit of priority to Korean Patent Application No. 10-2024-0202721, filed in the Korean Intellectual Property Office on Dec. 31, 2024, and Korean Patent Application No. 10-2024-0109889, filed in the Korean Intellectual Property Office on Aug. 16, 2024, and the entire contents of which are incorporated herein by reference.

The present disclosure relates to a battery pack.

In recent years, research and development on electric vehicles, which are environmentally-friendly vehicles, has grown as concerns regarding the environment and oil resource depletion has increased.

An electric vehicle, which is a vehicle powered by electricity, may include a battery pack. The battery pack may include a battery module including a plurality of battery cells.

A plurality of battery modules may be mounted in the battery pack, and each of the plurality of battery modules may include a battery cell and a busbar electrically connected with the battery cell.

The busbar may be exposed outside the battery module. In this case, due to conductive foreign matter resulting from a fire in the battery cell, a short circuit may occur between the busbar and other components adjacent to the busbar.

When the short circuit occurs between the busbar and the other components adjacent to the busbar, thermal runaway in the battery pack may be accelerated, and therefore there is a growing desire for a structure capable of preventing the phenomenon.

The present disclosure addresses the above-mentioned problems occurring in the prior art and provides improvements over the prior art.

An aspect of the present disclosure provides a battery pack for preventing a short circuit (e.g., phenomenon) occurring between a busbar and other components adjacent to the busbar.

The technical problems to be addressed by the present disclosure are not limited to the aforementioned problems, and any other technical problems not mentioned herein will be understood from the following description by those skilled in the art to which the present disclosure pertains.

According to an aspect of the present disclosure, a battery pack includes a pair of battery modules. The pair of battery modules includes a first battery module and a second battery module. Each battery module includes a battery cell and a busbar electrically connected to the battery cell. The first battery module includes a first battery cell and a first busbar, and the second battery module includes a second battery cell and a second busbar. The battery pack further includes a pack housing that extends to cover portions of peripheries of the pair of battery modules, a pack cover that is coupled with the pack housing and that covers one side of the battery modules, and a partition wall member disposed between the first battery module and the second battery module. The partition wall member is disposed between the pack cover and the first busbar to cover the first busbar, and is disposed between the pack cover and the second busbar to cover the second busbar.

The partition wall member may include a partition wall body provided between the first busbar and the second busbar and a cover body that extend from the partition wall body and cover the first busbar and the second busbar, respectively.

The cover body may be disposed between the first busbar and the second busbar and the pack cover.

The cover body may include a pair of cover bodies including a first cover body and a second cover body. The partition wall body may include a first partition wall body connected with the first cover body and a second partition wall body connected with the second cover body.

The first partition wall body and the second partition wall body may be attached (e.g., to each other).

The partition wall body may extend in a direction between the first battery module and the second battery module. The first cover body may be a plurality of first cover bodies, and the second cover body may be a plurality of second cover bodies. The plurality of first cover bodies may be spaced apart in the direction, and the plurality of second cover bodies may be spaced apart in the direction.

An angle between the partition wall body and the cover body may be obtuse angles.

An angle between the partition wall body and the cover body may be (e.g., about) 95 degrees.

The first battery modules may further include a first sensing assembly formed on a side in a lengthwise direction of the first battery cell, and the second battery module may further include a second sensing assembly formed on a side in a lengthwise direction of the second battery cell.

The partition wall member may further include a buffer pad attached to a surface of the partition wall body that faces at least one of the first sensing assembly or the second sensing assembly. The buffer pad may include rubber.

The partition wall member may further include a sealing pad that is disposed between the cover body and the pack cover.

The partition wall may seal a space between the cover body and the pack cover.

The sealing pad may include rubber.

The pack housing may include a base plate that supports the first battery modules and the second battery module and a cross member that is supported by the base plate and that extends (e.g., through) between the first battery module and the second battery module. The partition wall member may be supported by the cross member.

The cross member may include a longitudinal cross member that extends in a lengthwise direction of the battery pack and a transverse cross member that extends in a direction crossing the longitudinal cross member. The partition wall member may be supported by the transverse cross member.

The battery pack may further include a fixing member that fixes (e.g., couples) the base plate and the pack cover. The pack housing may further include a fixed guide member through which the fixing member passes. The partition wall member may include a cover body that is provided between the first busbar and the second busbar and that has a guide member cover area with a curvature to cover the fixed guide member.

The battery pack may further include a longitudinal busbar disposed parallel to the longitudinal cross member, and a busbar cover between the longitudinal busbar and the pack cover to cover the longitudinal busbar. The partition wall member may include a partition wall body provided between the first busbar and the second busbar, and a longitudinal cover body that extends from one end of the partition wall body in a lengthwise direction and covers the busbar cover.

The partition wall body may be formed of MICA.

The cover body may be formed of MICA.

Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the exemplary drawings. In adding the reference numerals to the components of each drawing, it should be noted that the identical or equivalent component is designated by the identical numeral even when they are displayed on other drawings. Further, in describing the embodiment of the present disclosure, a detailed description of known features or functions may not be included to prevent obscuring the gist of the present disclosure.

In describing the components of the embodiment according to the present disclosure, terms such as first, second, “A”, “B”, (a), (b), and the like may be used. These terms are intended to distinguish one component from another component, and the terms do not limit the nature, sequence, or order of the components. Unless otherwise provided, all terms used herein, including technical or scientific terms, have meanings as those generally understood by those skilled in the art to which the present disclosure pertains. Such terms as those provided in a generally used dictionary are to be interpreted as having meanings the same or similar to the contextual meanings in the relevant field of art, and are not to be interpreted as having ideal or excessively formal meanings unless provided as having such in the present application.

1 10 FIGS.to Hereinafter, embodiments of the present disclosure will be described in detail with reference to. Hereinafter, a first direction may be an X direction (a front direction) or a direction opposite to the X direction (a rear direction), a second direction may be a Y direction (a left direction) or a direction opposite to the Y direction (a right direction), and a third direction may be a Z direction (an upper direction) or a direction opposite to the Z direction (a lower direction). Here, the first direction may be an overall-length direction of an electric vehicle, and the second direction may be a width direction of the electric vehicle.

1 FIG. 2 FIG. is a plan view of components, other than a pack cover, of a battery pack according to an example embodiment of the present disclosure.is a perspective view of a battery module according to an example embodiment of the present disclosure.

1 2 FIGS.and 100 200 300 500 Referring to, the battery packmay include a plurality of battery modules, a pack housing, and the pack cover.

200 300 200 300 The plurality of battery modulesmay be mounted in the pack housing. The plurality of battery modulesmay be arranged side by side in the pack housingin the first direction (the X direction or the direction opposite to the X direction) and the second direction (the Y direction or the direction opposite to the Y direction).

2 FIG. 8 FIG. 200 201 210 220 As illustrated in, each of the battery modulesmay include a plurality of battery cells(refer to), sensing assemblies, and a pair of end plates.

201 220 201 The battery cellsmay extend in the first direction (the X direction or the direction opposite to the X direction) and may be stacked in the second direction (the Y direction or the direction opposite to the Y direction). The pair of end platesmay be provided on opposite sides of the plurality of battery cellsin the second direction (the Y direction or the direction opposite to the Y direction).

220 201 220 The pair of end platesmay press the plurality of battery cellsprovided between the pair of end plates.

210 201 201 211 210 211 200 200 The sensing assembliesmay be formed on opposite sides in the lengthwise direction of the battery cells. The plurality of battery cellsmay be electrically connected to busbarsof the sensing assemblies. The busbarsmay be exposed outside the battery modulein the lengthwise direction of the battery module.

200 230 201 240 220 The battery modulemay include a module coverthat covers (e.g., at least) one side of the battery cellsin the third direction (the Z direction) and a clamp memberthat presses the pair of end platestoward each other.

300 200 The pack housingmay be formed to surround portions of the peripheries of the plurality of battery modules.

300 310 200 320 330 310 8 FIG. The pack housingmay include a base plate(refer to) that supports the plurality of battery modules, and a front memberand a rear memberthat are coupled to opposite end areas of the base platein the first direction.

300 340 310 The pack housingmay include a pair of side memberscoupled to opposite end areas of the base platein the second direction (the Y direction or the direction opposite to the Y direction).

320 200 330 200 The front membermay cover areas of the plurality of battery modulesthat face toward one side in the first direction (the X direction). The rear membermay cover areas of the plurality of battery modulesthat face toward an opposite side in the first direction (the direction opposite to the X direction).

340 200 The pair of side membersmay cover areas of the plurality of battery modulesthat face toward opposite sides in the second direction (the Y direction or the direction opposite to the Y direction).

500 320 330 340 300 500 300 200 The pack covermay be coupled to the front member, the rear member, and the pair of side membersof the pack housing. The pack covermay be coupled with the pack housingand may cover one side of the plurality of battery modulesin the third direction (the Z direction).

300 350 310 350 200 350 200 The pack housingmay include a cross membersupported by the base plate. The cross membermay separate the plurality of battery modulesfrom each other. The cross membermay extend between a pair of battery modulesspaced apart from each other.

350 360 320 330 370 340 360 The cross membermay include longitudinal cross membersextending between the front memberand the rear memberin the first direction (the X direction or the direction opposite to the X direction) and transverse cross membersextending between one of the pair of side membersand the longitudinal cross membersin the second direction (the Y direction or the direction opposite to the Y direction).

360 200 200 360 100 Each of the longitudinal cross membersmay extend (e.g., through) between a pair of battery modulesspaced apart from each other in the second direction (the Y direction or the direction opposite to the Y direction) among the plurality of battery modules. The longitudinal cross membermay extend in the lengthwise direction of the battery pack.

370 200 200 370 360 Each of the transverse cross membersmay extend (e.g., through) between a pair of battery modulesspaced apart from each other in the first direction (the X direction or the direction opposite to the X direction) among the plurality of battery modules. The transverse cross membermay extend in a direction perpendicular to the longitudinal cross member.

361 360 211 200 370 A high-voltage cable or a longitudinal busbarmay be provided on one side of the longitudinal cross memberin the third direction (the Z direction). The busbarof the battery modulemay be provided on one side of the transverse cross memberin the third direction (the Z direction).

211 211 211 211 100 Meanwhile, a short circuit (e.g., phenomenon) may occur between the busbarand other components adjacent to the busbar. When the short circuit (e.g., phenomenon) occurs between the busbarand the other components adjacent to the busbar, a thermal runaway phenomenon may occur inside the battery pack.

100 211 211 100 400 Accordingly, for the stability of the battery pack, it is useful to prevent the short circuit (e.g., phenomenon) between the busbarand the other components adjacent to the busbar. To achieve this, the battery packaccording to an example embodiment of the present disclosure may include partition wall members.

400 370 400 200 200 The partition wall membersmay be supported by the transverse cross members. Each of the partition wall membersmay be disposed between a pair of battery modulesspaced apart from each other in the first direction (the X direction or the direction opposite to the X direction) among the plurality of battery modules.

400 200 200 The partition wall membermay be disposed between the pair of battery modulesspaced apart from each other in the first direction (the X direction or the direction opposite to the X direction) among the plurality of battery modules.

400 200 200 211 500 211 The partition wall membermay separate the pair of battery modulesspaced apart from each other in the first direction (the X direction or the direction opposite to the X direction) among the plurality of battery modulesand may be located between the busbarsand the pack coverto cover the busbars.

400 400 400 360 a b The partition wall membersmay include first partition wall membersand second partition wall membershaving different shapes based on the longitudinal cross members.

400 400 360 400 360 400 360 a b b a The first partition wall membersand the second partition wall membersmay be disposed on opposite sides of the longitudinal cross members. The second partition wall membersmay be disposed on one side of the longitudinal cross membersin the second direction (the Y direction), and the first partition wall membersmay be disposed on an opposite side of the longitudinal cross membersin the second direction (the Y direction).

3 FIG. 4 FIG. 5 FIG. 6 FIG. 7 FIG. 8 FIG. 1 FIG. is an enlarged perspective view of the battery modules and the first partition wall member according to an example embodiment of the present disclosure.is a perspective view of the first partition wall member according to an example embodiment of the present disclosure.is a side view of a partition wall body and a cover body of the first partition wall member according to an example embodiment of the present disclosure.is a side view illustrating a state in which a first partition wall body and a second partition wall body of the first partition wall member are attached according to an example embodiment of the present disclosure.is a plan view of a partition wall member disposed between a pair of battery modules according to an example embodiment of the present disclosure.is a vertical sectional view of the (e.g., remaining) components other than the pack cover of the battery pack illustrated in.

3 8 FIGS.to 400 410 211 420 410 211 a Referring to, the first partition wall membermay include a partition wall bodyprovided between a pair of busbarsand a cover bodythat extend from the partition wall bodyand cover the pair of busbars.

410 200 The partition wall bodymay extend in the second direction (the Y direction or the direction opposite to the Y direction) between a pair of battery modulesspaced apart from each other in the first direction (the X direction or the direction opposite to the X direction).

410 370 The partition wall bodymay be supported by the transverse cross memberand may extend such that the second direction (the Y direction or the direction opposite to the Y direction) corresponds to the lengthwise direction.

420 211 500 211 The cover bodymay be disposed between the busbarsand the pack coverand may cover one side of the busbarsin the third direction (the Z direction).

420 421 422 410 The cover bodymay include a first cover bodyand a second cover bodythat extend from one end of the partition wall bodythat faces toward one side in the third direction (the Z direction).

421 422 410 The first cover bodyand the second cover bodymay extend from the partition wall bodyto face in opposite directions.

421 422 421 410 422 410 Each of the first cover bodyand the second cover bodymay be provided in plural. The plurality of first cover bodiesmay be spaced apart from each other in the lengthwise direction of the partition wall body. The plurality of second cover bodiesmay be spaced apart from each other in the lengthwise direction of the partition wall body.

421 211 422 211 421 422 211 410 The plurality of first cover bodiesmay cover a plurality of busbars, and the plurality of second cover bodiesmay cover a plurality of busbars. One first cover bodyand one second cover bodymay cover a pair of busbarsseparated from each other by the partition wall body.

4 FIG. 400 430 440 a Meanwhile, as illustrated in, the first partition wall membermay further include a buffer padand a sealing pad.

430 410 200 430 410 210 The buffer padmay be attached to one surface of the partition wall bodythat faces the battery module. In more detail, the buffer padmay be attached to one surface of the partition wall bodythat faces the sensing assembly.

400 200 430 200 210 200 400 a a When the first partition wall memberis mounted between the pair of battery modulesspaced apart from each other in the first direction (the X direction or the direction opposite to the X direction), a pair of buffer padsfacing the pair of battery modulesmay be brought into contact with the sensing assembliesof the pair of battery modules, and accordingly the position of the first partition wall membermay be guided.

430 400 210 210 a The buffer padsmay be formed of rubber (e.g., EPDM or ethylene propylene rubber). Accordingly, even though the first partition wall memberis brought into contact with the sensing assemblies, the sensing assembliesmay not be damaged.

210 410 430 100 The separation distance between the sensing assembliesand the partition wall bodymay be maintained by the buffer pads, and thus the structural safety of the battery packmay be improved.

440 420 440 420 500 420 500 The sealing padmay be disposed on the cover body. In other words, the sealing padmay be disposed between the cover bodyand the pack coverand may seal the space between the cover bodyand the pack cover.

440 500 440 500 400 a The sealing padmay also be formed of rubber (e.g., EPDM or ethylene propylene rubber), and therefore even though the pack covermakes contact with the sealing pad, the pack coveror the first partition wall membermay be prevented from being damaged.

500 420 440 100 100 At the same time, the separation distance between the pack coverand the cover bodymay be maintained by the sealing padso that the robustness of the battery packmay be secured. Due to this, even though an external force is applied to the battery pack, noise may not occur, and thus user satisfaction may be improved.

5 FIG. 410 420 410 420 As illustrated in, the angle (e.g., θ) between the partition wall bodyand the cover bodymay be an obtuse angle. The angle between the partition wall bodyand the cover bodymay be about 95 degrees.

400 420 410 According to this structure, the partition wall membermay be prevented from being damaged in a process in which the cover bodyis bent from the partition wall body, and thus the productivity may be improved.

6 FIG. 410 411 412 411 421 412 422 As illustrated in, the partition wall bodymay include the first partition wall bodyand the second partition wall body. The first partition wall bodymay be connected with the first cover body, and the second partition wall bodymay be connected with the second cover body.

411 421 412 422 421 411 422 412 The first partition wall bodymay be integrally formed with the first cover body, and the second partition wall bodymay be integrally formed with the second cover body. The first cover bodymay be bent from the first partition wall bodyand the second cover bodymay be bent from the second partition wall body.

411 412 411 412 421 422 The first partition wall bodyand the second partition wall bodymay be attached (e.g., to each other) by an adhesive. However, without being limited thereto, the first partition wall body, the second partition wall body, the first cover body, and the second cover bodymay be integrally formed.

4 FIG. 410 413 411 412 As illustrated in, the partition wall bodymay include a pair of guide member covers (e.g., pair of guide member cover areas)having curvatures in opposite directions from the first partition wall bodyand the second partition wall body.

100 500 400 310 500 310 400 500 300 370 370 310 500 a a 1 FIG. The battery packmay further include a fixing member (not illustrated) that passes through the pack cover, the first partition wall member, and the base plateand the fixing member fixes (e.g., couples) the pack cover, the base plate, and the first partition wall memberafter the pack coveris coupled with the pack housing. The fixing member may pass through the transverse cross member(refer to) to fix (e.g., couple) the transverse cross member(e.g., together) with the base plateand the pack cover.

300 371 371 The pack housingmay include a fixed guide memberthrough which the fixing member passes. The fixed guide membermay have a hole that extends in the third direction (the Z direction or the direction opposite to the Z direction).

413 371 The pair of guide member coversmay have a curvature to cover the fixed guide member.

200 371 According to this example structure, although a fire may occur in the battery module, the fire may be prevented from spreading to the fixed guide memberformed of metal (e.g., aluminum), and thus safety may be improved.

400 423 424 410 421 422 a The first partition wall membermay include a third cover bodyand a fourth cover bodythat are bent from the partition wall bodyand that have a shape different from the shapes of the first and second cover bodiesand.

423 411 424 412 423 424 411 412 The third cover bodymay be bent from one end of the first partition wall bodythat faces toward one side in the third direction (the Z direction), and the fourth cover bodymay be bent from one end of the second partition wall bodythat faces toward one side in the third direction (the Z direction). The third cover bodyand the fourth cover bodymay be bent from the first partition wall bodyand the second partition wall bodyin opposite directions, respectively.

423 424 400 360 100 423 424 a The third cover bodyand the fourth cover bodymay be formed on an area of the first partition wall memberthat faces toward the longitudinal cross memberof the battery pack. The third cover bodyand the fourth cover bodymay have the shape of “T” when viewed at a distance from one side in the third direction (the Z direction).

400 425 410 410 425 400 360 a a The first partition wall membermay further include a longitudinal cover bodybent from one end of the partition wall bodyin the lengthwise direction of the partition wall body. The longitudinal cover bodymay be formed on one side of the first partition wall memberadjacent to the longitudinal cross member.

100 361 360 362 361 500 361 363 The battery packmay include a longitudinal busbardisposed parallel to the longitudinal cross member, a busbar coverlocated between the longitudinal busbarand the pack coverto cover the longitudinal busbar, and a connectorconnected with a separate cable.

423 424 425 362 423 424 362 500 362 425 362 363 362 The third cover body, the fourth cover body, and the longitudinal cover bodymay cover the busbar cover. The third cover bodyand the fourth cover bodymay be located between the busbar coverand the pack coverto cover the busbar cover. The longitudinal cover bodymay be located between the busbar coverand the connectorto cover the busbar cover.

400 200 361 362 363 a According to this example structure, the first partition wall membermay prevent a fire from spreading from the battery moduleto the longitudinal busbar, the busbar cover, and the connector, and thus safety may be improved.

410 421 422 423 424 420 425 410 421 422 423 424 420 425 The partition wall body, the first, second, third, and fourth cover bodies,,, andof the cover body, and the longitudinal cover bodydescribed above may be formed of MICA. However, without being limited thereto, the partition wall body, the first to fourth cover bodies,,, andof the cover body, and the longitudinal cover bodymay be formed of a material having insulation and heat resistance.

8 FIG. 400 200 200 121 121 a Accordingly, as illustrated in, the first partition wall membermay prevent heat transfer between the battery modulesspaced apart (e.g., from each other) in the first direction (the X direction or the direction opposite to the X direction) and may prevent foreign matter resulting from a fire in the battery modulesfrom causing a short circuit (e.g., phenomenon) between the busbarand other components (e.g., adjacent) to the busbar.

9 FIG. 10 FIG. is a perspective view of the second partition wall member according to an example embodiment of the present disclosure.is an enlarged perspective view of a pair of battery modules and the first partition wall member according to an example embodiment of the present disclosure.

9 10 FIGS.and 400 400 b a Referring to, the second partition wall membermay have a length shorter than the (e.g., maximum) length of the first partition wall memberin the lengthwise direction.

400 400 360 b The second partition wall membermay be a partition wall memberdisposed on one side of the longitudinal cross memberin the second direction (the Y direction).

400 410 200 421 422 410 b The second partition wall membermay include a partition wall bodyextending (e.g., through) between the pair of battery modulesspaced apart (e.g., from each other) in the first direction (the X direction or the direction opposite to the X direction), and a first cover bodyand a second cover bodybent from one end of the partition wall bodythat faces toward one side in the third direction (the Z direction).

400 400 423 424 a b Unlike the first partition wall member, the second partition wall membermay not have the third cover bodyand the fourth cover body.

400 430 440 b The second partition wall membermay have a buffer padand a sealing pad.

410 400 413 413 411 412 413 371 b The partition wall bodyof the second partition wall membermay include a pair of guide member covers. The pair of guide member coversmay be bent from a first partition wall bodyand a second partition wall bodyin opposite directions. The pair of guide member coversmay have a curvature to cover the fixed guide member.

400 425 410 360 425 400 425 400 425 425 400 400 360 b a b b b The second partition wall membermay include a longitudinal cover bodyextending from one end of the partition wall bodythat faces toward the longitudinal cross member. Unlike the longitudinal cover bodyof the first partition wall member, the longitudinal cover bodyof the second partition wall membermay include four longitudinal cover bodies. The longitudinal cover bodyof the second partition wall membermay also be formed on one side of the second partition wall memberadjacent to the longitudinal cross member.

425 400 425 425 425 411 425 412 b In an example embodiment, the longitudinal cover bodyof the second partition wall membermay include four longitudinal cover bodies. Among the four longitudinal cover bodies, one pair of longitudinal cover bodiesmay be bent from the first partition wall body, and another (e.g., the other) pair of longitudinal cover bodiesmay be bent from the second partition wall body.

425 425 362 500 362 425 362 363 362 Among the four longitudinal cover bodies, one pair of longitudinal cover bodiesmay be located between the busbar coverand the pack coverto cover the busbar cover, and the other pair of longitudinal cover bodiesmay be located between the busbar coverand the connectorto cover the busbar cover.

400 200 361 362 363 b According to this example structure, the second partition wall membermay prevent a fire from spreading from the battery moduleto the longitudinal busbar, the busbar cover, and the connector, and thus safety may be improved.

410 421 422 420 425 410 421 422 420 425 In an example embodiment, the partition wall body, the first and second cover bodiesandof the cover body, and the longitudinal cover bodydescribed herein may be formed of MICA. In another example embodiment, without being limited thereto, the partition wall body, the first and second cover bodiesandof the cover body, and the longitudinal cover bodymay be formed of a material having insulation and heat resistance.

400 200 200 121 121 b Accordingly, the second partition wall membermay prevent heat transfer between the battery modulesspaced apart (e.g., from each other) in the first direction (the X direction or the direction opposite to the X direction) and may prevent foreign matter resulting from a fire in the battery modulesfrom causing a short circuit (e.g., phenomenon) between the busbarand other components adjacent to the busbar.

400 400 b a For the shape or material of a structure (e.g., other than the structure of the second partition wall memberdescribed above), the description of the shape or material of the structure of the first partition wall memberis provided.

500 According to the present disclosure, the partition wall member may cover the space between the busbar and the pack cover. Accordingly, a short circuit (e.g., phenomenon) between the busbar and the other components adjacent to the busbar may be prevented.

The partition wall member may be disposed between the pair of battery modules. Accordingly, heat transfer between the pair of battery modules separated (e.g., from each other) by the partition wall member may be prevented, and thus thermal runaway in the battery pack may be prevented.

500 The partition wall member may cover the space between the busbar cover and the pack coverand may cover the space between the busbar cover and the connector. Accordingly, thermal runaway in the battery pack may be prevented.

The buffer pad of the partition wall member may fix (e.g., provide) the separation distance between the battery module and the partition wall body. Accordingly, the structural stability of the battery pack may be improved.

500 The sealing pad of the partition wall member may seal the space between the pack coverand the cover body. Accordingly, even though vibration is applied to the battery pack, noise may be reduced, and the structural stability of the battery pack may be improved.

The angle between the partition wall body and the cover body may be an obtuse angle, and thus the productivity of the partition wall member may be improved.

In addition, the present disclosure may provide various effects that are directly or indirectly recognized.

Hereinabove, although the present disclosure has been described with reference to exemplary embodiments and the accompanying drawings, the present disclosure is not limited thereto, but may be variously modified and altered by those skilled in the art to which the present disclosure pertains without departing from the spirit and scope of the present disclosure.

Therefore, the example embodiments herein provide the scope of the present disclosure, but are not intended to limit the spirit and scope of the present disclosure. The scope of the present disclosure should be construed in view of the accompanying claims, and the technical ideas within the scope equivalent to the claims should be included in the scope of the present disclosure.